Mining-machine.



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N. D. LEVlN.

MfNxNG MACHlNE.

APPLIQATION FiLED SEPT.`30, 19111 RENEWEDOCT. 27,1917.

Fatented Nov. 19, 1918..

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atente Nov. I9, 1918.

REIIEWED OCT. 27.1917.

N. D. LEI/IN.

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MINING MACHINE.

APPLICATION FILED SEPT. 30. ISH.

@gw/tween@ N. D. LEVIN, MINING MACHrNE..

RENEWED OCT. 27, 19|?.

APPLICATION FILED SI'EPT. 30. 19H.

Pntmltcd Nov. 1S), 1918.

6 SHEETS-VSHEET 3 N. D. LEVIN.

MINING MACHXNE.

APPLICATION m50 s512130, 1911. neuw/Enom. 2f, 1917.

SHEETS-SHEET 4.

Pueud Nov. 19, M18.

N. n. LEI/III,

MINING MACHINE.

APPLICATIQN FILED SEPT. 30 19H.

RENEWED OCT, 2, i917.

Patented Nov. 19, M18'.

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6 SHEYETS--SHEET 5- www?,

Sube/mo@ l Hmmm? N.'D..LEVIN Y MINING MACHINE. APLICATION FiLED SEPT. 30,1911. RENEWED OCT. 27, `91.

'Patented Nw. 19, 1918.

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mias Devin Levin, OIF COLUMBUS, OHIO, AssIGNon To THE JEFFREY menunecrumne COMPANY, n OORPORATIONOF OHIO.

MINING-MACHINE.

@pacification or Lettere recent.

Patenten new. ae, aars.

Application led September 30, 1911, Serial No. 652,099. Renewed October 27, 1917. Serial No, 198,882.

To, all ywhom it may concern.'

.Improvements in Mining-Machines, of which the following is aspecication, reference being had therein to the accompanying draw- This invention relates tov coal cutting machines, and more especially to machines of the type disclosed in my co-pending application, Serial No. 545,337, liled February 23, 1910.

The principal object of the invention is to provide in a machine of the type disclosed in my co-pending application, above referred to, an improved driving connection between the main motor and the truck wheels.

I do not herein claim as a partv of my present invention the specific devices which I have shown for adjusting the cutter mechanism vertically with respect to the base and for holding it in adjusted position. These devices are shown and claimed in my copending application, Serial No. 7 52,742, tiled March 7, 1913, as a division of this application.

1n the accompanying drawings I 'have' shown the embodiment of my invention which'is now deemed preferable. The construction illustrated is similar in many respects to that shown in m co-pending application, Serial No. 545,337.

. Of the drawings,

Figure 1 is a plan view of a machineetnbodying my invention in operative position in a mine. Y Y

Fig. 2 is a side elevation showing a machine'in two positions of adjustment.

Fig. 3 is a loottom plan view of the turntable and attached mechanism separated from the other parts of the machine.

Fig. a -is a fragmentary end view of the `power connection between the adjustable trame and the truck.

Fi 5 is a cross'sectional view taken along the line 5-5 of Fig. 2, many of the parts connected to theturntable being omitted for the sake of clearness.

Fig. 6 is a fragmentary cross sectional elevation `taken along the line 6-6 of Fig. 5.

Fig. 7 is a fragmentary cross sectional view taken along the line 7-7 of Fig. 3, some of the parts being omitted for the'sake of clearness.

Fig. 8 is a detail view of the pins connecting together the elements of the cutter mechanism drive.

Fig. 9 is a fragmentary cross sectional view showing themeans for retaining the turntable in place upon itssupport.

Fig. 10 is a fragmentary sectional vView taken along the line 10-10 of Fig. 2.

Fig. 11 isa fragmentary section taken on the line 111-11 in Fig. 7.

Figs. 12 and 13 are diagrammatic views showing one way in which the machine can be opera-ted. In these views the machine may be considered as cutting either a room or an entry.

Figs. 14 and 15 are diagrammatic views showing another way in which the machine can he operated. In these views the machineis shown cutting according to the longwall method.

vReferring to the drawings, 1 'represents the frame and platform of the truck which constitutes a rigid lbase upon which the other parts of the machine are mounted. The

vtruck yplatform is 4supported on axles 2, 2a,

and track wheel 3, 3a. vOne of the axles, as for instance2, is extended at'one end and `carries a sprocket-wheel 4, the purposel of which will be more fully described hereinafter.

At three separated points on the truck platform 1 are secured upright guides', 6 and 7, two of these guides being arranged at the front corners of thetruck platform4 while Athe third is arranged centrally onv the rear right guides 5, 6, and 7 Each of the lugs 12, 13 and 14 is Iprovided with a vertical aperture'through whichiextends an adjusting screw 15. The lower end of each adjusting screw l5 isprovided with a hardened hear` Ving pin 16 which rests upon and engages with a lhardened bearing plate 171 secured to the truck platform l. The upper end of epee xozene see; Y this Sheff-'b 3G will oe mole hereinafter,

31 is horizontal shaft mounizeo in eunefole bearings oo the und@ side of the nuwe -ebe. This shaft 3l @enves ehe *guichet Wheel 32 meer s oen'tel. Pvotey moune eachsde of the ratchet Whee 32 me 3 beween Wheh theye is pealy mouned a pewl 8% which is nomely held in engagement with the zetehe; wheel Toy Ineens o a spying 35. The mms 33 ele eseaed ebou' than proa wie foy means of the link 36 Wheh is eomleee atome end the mme by' meme of knuckle jonfa, and 'Ehe olle end to he strap of en eoe'eno eheh is mounted on the shaft 2? being pleefebly 'omed as a of fue geef Q8. 39 is an elouee inge? mounted ooncentoel f' with @he 'etohet wheel 32 and 'to Toe ose-'11- eted about the axis of [ne Wheel bj; 'ineens onf the threaded od e0 and the hand Wheel 2 s e second pewl nolmey engaging the aehe hee This pim/* is ne in okee by means o the spring The pow? l "efembly mouoed upon en eeeenuo Took; menne of `Joie-@3. if;

e.; d a. wenn heel on e r ezuree 'e 1. h' -9 lieb is con oj; by menne Hed by bend o neozerl to the The end of 'this A hewn in 2, o o zhe rei-,MCM studs or hold- 'Ch efe grovded ou the fing 1 sheaves are arranged in e around be tuin'teoe.- f holer the end of the l eemvei to, and respeoive of the posaon of t e serve .fe guide ehe Cable fiom he holder eengemelv to edge the turntable, so ill-et the 5 a "5 of oebe is eeofavely epped :13o n 'me hable when the Winding dum is foreec 5% is a Cutie? erm oro To H i eong hozonely -om Phe mntefble *El u planes above the they o .Tis of *die machine. 55 is a Cuel ie euabjr guided in ille Emme h passes ai he nnef end of 'the 1 1 and Wi 'o mme Monod sprocket Wheel 56 rotatably mounted ooncemcey ,Wx the shaft "El Z6 below the oeket Wheel 56 is e fiange o1 @OHM The s mookt Wheel 56 and the flange 57 ae each plovded Wh two apertures 'which may oe bfougght into alnemenb en@ though which may gbe passed ehe link eonneoed 5S. Tfhen he pins 5S, 5S are 'm pleo@ power is transm'tedimm the shaft 26 ite the sprooke Wheel and "to the Cuit-e1. duin. TWhen 'the pins me emoved, che

ehe gz-oael mechanism, may be opemed turntable? these sheaves :32-

o eonueoton ige ehe cutie? chain 1sY okeu and the Shat Q6, together Wlh allv Lacasse electrical connectionbetween the reel and the motor is preferably formed by means of a ilexible cable indicated by 61.

It is desirable in some cases to lock the cutter arm 54 against turning and effect the cutting of the korf by moving the machine bodily. To this end I mount a locking boli 62 on the frame 8 so that it can bc raised and lowered into and out of engagement with any one of a number of notches 63 formed in the edge of the turntable.

' Mechanism is provided for connecting the machine mgtor with the track wheels of the truck in order that the machine may be driven by its own power from point to point. Upon'one of the brackets or lugs secured to the ring 8 as for instance 9, the'revis rotatably mounted a spur pinion 64 which has a central aperture provided with a keyway. (See Fig. 5). Alining apertures are also provided in the bracket 9 and in the ring 8.

65 is an arm mounted at one end on the bracket 9 concentrically with the spur inion 6d. The other end of 'the arm 65 is orked and between the forks there extends a horizontal pin 66. Rotatably mounted on ther pin 66 is a sprocket wheel 67 upon the hub of which there is secured a spur gear 68 meshing with the spur pinion 64. 69 is a spacing strut pivotally mounted at its lower end on a bearing -pin 69a on the truck`and pivotally connected at its upper end to the pin 66. A chain 70 passes over the sprocket -wheel 67 on the pin 66 and the sprocket wheel l on the axle 2. The strut 69 serves toV hold the two sprocket wheels at the proper distance apart. and the arm'6-5 are pivotally connected together and also pivoited respectively to' the truck and to the ring, they automatically accommodate themselves as the ring is raised or lowered with respect to the truck, and

there is corresponding accommodation of the power devices so that the power' connection remains unbroken L rrespective of the position of the ring.

Reference has heretofore been made to the shaft 30 which receives its power from the bevel gear--28by means of the gear 29. At the other end of the sha-ft 30 there is provided a keyed socket 71 which is rotatably connected with the shaft by means of a compensating disk72 which permits rotation of the shattand'of the socket about axes which are slightly out ofalinement. When it is desired'to drive the track wheels from the motor, the turntable is swung into the position shown in Fig. 2, and a pin 73 is inserted through the apertures in thespur pinion 64, the bracket 9 and the ring 8 into thesocket 7l. The pin '73 is provided at its forward end with a keyway adapted to be engaged by the key of the socket 71, and at its rear end with a ke adapted to enter and engage' the keyway o' the pinion 64. When the pin 73 Inasmuch as the strut 69- is in position, power is transmitted from the motor to the shaft 30, and from the shaft 30 through the compensating disk 72, the socket 71 and the pin 73 to the pinion 64. From the pinion 64' power is transmitted to the axle' through the gear 68, the sprocket wheel 67, the chain and the sprocket wheel l; The compensating disk 72 serves to take care of any failure of the shaft 30 and of the pin 73 to come into exact axial alinement. ln driving the machine through thc train of power connections as has been described, it

v will ordinarily be found desirable to disconnect the cutter chain by removing the pins 58 58.

ilhe manner in which the machine operates will be understood from the foregoing description, and the way in which the machine is utilized vin mining will be clear from a consideration of Figs. 12, 13, 14 and 15, which show two of the ways in which the 'machine can be used.

Referring first to Figs. v12 and 13, it will be observed that the machine is here shown as operating on atrack which extends along the center of a room to the face which is to with the turntable and cutter arm arranged as shown in Fig. 2, advances under its own power into the room and is brought to a position as close asis convenient to the face of the coal. The pin 7.3 is now withdrawn to permit movement of the turntable and, the cutting mechanism having been extended toward' the right as shown in Fig. 12, and having been adjusted to the proper working height, and if desired inclinedA to the horizontal, by means of the screws 15, the cable 51 is passed around the idler sheaves on the turntable and secured to one of the cable holders 52. The cutting mechanism and the winding drum are then set in motion, the rotation of the winding drum and consequent winding in of the cable serving to swing the cutting mechanism from right to left to cause it to cut a semicircular kerf extending from one side of the room to the other.

In Fig. 13 the kert is shown half cut and the dotted lines indicate the position ofthe cutter after the completion of the cut.

vThe cut having been completed, the turntable and cutter arm are moved again to the position shown in Fig. 2, the pin 73 is replaced, so as to operatively connect the motor to the track wheels, and the machine is moved from the room under its own power, and thence through the mine entry to another room where the operation is repeated.

In Figs. 14 and 15 the machine is shown .be cut. From the mine entry lthe machine,

ics

working on atrack parallel to the coal face be started and, the transmission pin 73 having been withdrawn, the cutter arm is *Une combllh axlesand axles powa@ g curti .he @uiting me@ Sfecme les and at iis o die mm, a s: a, @n a. chain kei machine. ide@ 'w mmld on .be truck,

mechanism 0ppm on ci with Him 0 one of ijf m dun Mentally exten Mull.. D

Said a Smil Cttmg 1 uc; prov a frame hor zu om th@ tur @cte @aus l K maevvlhJ a simi. coma l.

+ Y L'L m -a is amm power ly conne 21 ab Lonts ms n Jah@ coal. Consume-ai which e e' which s find" 'from @um a mi he possible 'Whe been O mmf n: ou

m p 0r operably conv am -ng ble mechanism i motor 'tingj mechanism on. v the combll@ with axles and d @n "abe truck the smi s in `one posi machine dec @unie lid n a con a, wheels,

a 2g-urn ms? s 110th baut iA* ich emp 0 be Consi-.Lis

und Teli the .L ably mounted on a mm ing

at power transm't @Hive it,

55 @ui Q, het een the truc nuo est the Muck, @m ma moto? to the power namsifn mean 15mn param nii-ting pact to ih@ Hin@ mach the comnath axles md Mack gastada wich ine? me simon. ou

1 mi *p mme @ne po E. in n ma v im is 1D ine. me Combi- Wlth ailes and 'ina @oai Cu h Und; www v :1 imma 1.'

' -ed on the frame, the power transmitting` motor on the turn table for driving the cut-y ting mechanism, power transmitting mechanism connected to one' of the axles Aof the truck and lhaving a rotatable element mountmechanism being automatically adjustable to be operable for all positions of the frame, a rotatable element connected with the motor and adapted to substantially-aline with the rotating element on theframe, when the turntable is in one position, and means for connecting together at will the two rotatable elements.

7. ,In a coal cutting machine, the combinan tion vof a truck provided with axles and trabk wheels, a frame vertically adjustable with respect to the truck, a turn table mounted on the frame', horizohtally extending cutting mechanism mounted on the turn table, a motor on the turn table for driving the cutting mechanism, power transmitting mechanism connected to one of the axles of the truck and having a rotatable element mounted on the france, the power transmit-` ting mechanism being automatically adjustable to be operable for all positions of the frame, a rotatable element connected with the motor and adapted to aline with the rotatin element on the frame when the turn ta le is in'rone'position, and means for `connecting together at will the two rotatable elements, the said means comprising a device adapted to transmit power irrespective of whether or not the two elements are in exact axial alinement.

8. In a coal cutting machine, the combination of -a truck provided with axles and track wheels, a frame vertically adjustable with respect to thetruck, a turn table mounted on the frame, horizontally extending cutting mechanism mounted on the turn table, a 'motor Von the turntable for driving the cutting mechanism, power transmitting mechanism connected to one of the axles of the truck and having a centrally apertured rotatable element mounted on the frame; the said power transmitting mechanism Vbeing 'automatically-adjustable to be operable virre- 'spectively of the position of the frame, a

rotating socket mounted-on the turntable and connected with the motor, the said socket being adapted to substantially aline with the apertured rotatable elements when the turn table is in one position, and a pin adapted to extend through the apertured element and into the socket and to engage the apertured element and the lsocket to transmit power from the latter to the former.

9. In a coal cutting machine, the combination of a truck provided with axles and track wheels, a frame vertically adjustable with respect to the truck, a turn table mounted on the frame, horizontally extending cutting mechanism mounted on the turn table, a motor on the turn tablerfor driving the cutting mechanism, power transmitting mechanism connected to one of the axles of the truck and having a centrally-apertured rotatable element mounted on the frame, the said power transmittingmechanism being automatically adjustable to be operable irrespectively of the position of the frame, a rotating socket mounted on the turn table, the said socket being adapted to substantially alinel with the apertured rotatable element when the turn table is in one position, means for connecting the motor with the socket in a manner permitting the position of the axis of rotation'of the socket to vary, and a pin adapted to extend through the apertured element and into the socket and to engageA the apertured element and the socket to transmit power from the latter to the former.

l0. In a coal cutting machine, the combination of a rigid framework, track wheels supporting said framework, a turn table mounted on the framework, horizontally extending cutting mechanism mounted on the turn table, a motor on the turn table for driving the cutting mechanism, power transmitting mechanism connected to the track wheels and comprising a rotatable element mounted on the framework, av rotatable element connected with the motor and adapted, when the table is turned, to move into and out of approximate axial alinement with the rotatable element on the framework, Vand means adapted to operatively connect the said rotatable eicments when they are in alinement.

11. In a coal cutting mechanism, the combination of a rigid framework, track 4wheels 105 supporting said framework, a turn table mounted on the framework, horizontally ex- NILs DAVID LEviN.,

Witnesses:

E. E. Itooxrmm, DUDLEY T. FISHER. 

